HEADER MEMBRANE PROTEIN 25-APR-24 8ZAP TITLE EXOC110T CLASS 1 CHANNELRHODOPSIN COMPND MOL_ID: 1; COMPND 2 MOLECULE: C110T-CLASS1; COMPND 3 CHAIN: A, B, C; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HYPHOCHYTRIUM CATENOIDES; SOURCE 3 ORGANISM_TAXID: 42384; SOURCE 4 EXPRESSION_SYSTEM: HOMO SAPIENS; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 9606 KEYWDS CHANNELRHODOPSIN, MEMBRANE PROTEIN EXPDTA ELECTRON MICROSCOPY AUTHOR M.F.ZHANG REVDAT 1 04-SEP-24 8ZAP 0 JRNL AUTH Y.SHAN,L.ZHAO,M.CHEN,X.LI,M.ZHANG,D.PEI JRNL TITL CHANNELRHODOPSINS WITH DISTINCT CHROMOPHORES AND BINDING JRNL TITL 2 PATTERNS. JRNL REF NAT COMMUN V. 15 7292 2024 JRNL REFN ESSN 2041-1723 JRNL PMID 39181878 JRNL DOI 10.1073/PNAS.1818707116 REMARK 2 REMARK 2 RESOLUTION. 2.60 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 SOFTWARE PACKAGES : NULL REMARK 3 RECONSTRUCTION SCHEMA : NULL REMARK 3 REMARK 3 EM MAP-MODEL FITTING AND REFINEMENT REMARK 3 PDB ENTRY : NULL REMARK 3 REFINEMENT SPACE : NULL REMARK 3 REFINEMENT PROTOCOL : NULL REMARK 3 REFINEMENT TARGET : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE : NULL REMARK 3 REMARK 3 FITTING PROCEDURE : NULL REMARK 3 REMARK 3 EM IMAGE RECONSTRUCTION STATISTICS REMARK 3 NOMINAL PIXEL SIZE (ANGSTROMS) : NULL REMARK 3 ACTUAL PIXEL SIZE (ANGSTROMS) : NULL REMARK 3 EFFECTIVE RESOLUTION (ANGSTROMS) : 2.600 REMARK 3 NUMBER OF PARTICLES : 154800 REMARK 3 CTF CORRECTION METHOD : NONE REMARK 3 REMARK 3 EM RECONSTRUCTION MAGNIFICATION CALIBRATION: NULL REMARK 3 REMARK 3 OTHER DETAILS: NULL REMARK 4 REMARK 4 8ZAP COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBC ON 29-APR-24. REMARK 100 THE DEPOSITION ID IS D_1300047316. REMARK 245 REMARK 245 EXPERIMENTAL DETAILS REMARK 245 RECONSTRUCTION METHOD : SINGLE PARTICLE REMARK 245 SPECIMEN TYPE : NULL REMARK 245 REMARK 245 ELECTRON MICROSCOPE SAMPLE REMARK 245 SAMPLE TYPE : PARTICLE REMARK 245 PARTICLE TYPE : POINT REMARK 245 NAME OF SAMPLE : EXOC110T REMARK 245 SAMPLE CONCENTRATION (MG ML-1) : NULL REMARK 245 SAMPLE SUPPORT DETAILS : NULL REMARK 245 SAMPLE VITRIFICATION DETAILS : NULL REMARK 245 SAMPLE BUFFER : NULL REMARK 245 PH : 7.20 REMARK 245 SAMPLE DETAILS : NULL REMARK 245 REMARK 245 DATA ACQUISITION REMARK 245 DATE OF EXPERIMENT : NULL REMARK 245 NUMBER OF MICROGRAPHS-IMAGES : NULL REMARK 245 TEMPERATURE (KELVIN) : NULL REMARK 245 MICROSCOPE MODEL : FEI TITAN KRIOS REMARK 245 DETECTOR TYPE : FEI FALCON IV (4K X 4K) REMARK 245 MINIMUM DEFOCUS (NM) : 1200.00 REMARK 245 MAXIMUM DEFOCUS (NM) : 2000.00 REMARK 245 MINIMUM TILT ANGLE (DEGREES) : NULL REMARK 245 MAXIMUM TILT ANGLE (DEGREES) : NULL REMARK 245 NOMINAL CS : NULL REMARK 245 IMAGING MODE : BRIGHT FIELD REMARK 245 ELECTRON DOSE (ELECTRONS NM**-2) : 6000.00 REMARK 245 ILLUMINATION MODE : FLOOD BEAM REMARK 245 NOMINAL MAGNIFICATION : NULL REMARK 245 CALIBRATED MAGNIFICATION : NULL REMARK 245 SOURCE : FIELD EMISSION GUN REMARK 245 ACCELERATION VOLTAGE (KV) : 300 REMARK 245 IMAGING DETAILS : NULL REMARK 247 REMARK 247 ELECTRON MICROSCOPY REMARK 247 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM ELECTRON REMARK 247 MICROSCOPY DATA. PROTEIN DATA BANK CONVENTIONS REQUIRE REMARK 247 THAT CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES REMARK 247 ON THESE RECORDS ARE MEANINGLESS EXCEPT FOR THE CALCULATION REMARK 247 OF THE STRUCTURE FACTORS. REMARK 300 REMARK 300 BIOMOLECULE: 1 REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON REMARK 300 BURIED SURFACE AREA. REMARK 350 REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS REMARK 350 GIVEN BELOW. BOTH NON-CRYSTALLOGRAPHIC AND REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN. REMARK 350 REMARK 350 BIOMOLECULE: 1 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: TRIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TRIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C REMARK 350 BIOMT1 1 1.000000 0.000000 0.000000 0.00000 REMARK 350 BIOMT2 1 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 1 0.000000 0.000000 1.000000 0.00000 REMARK 465 REMARK 465 MISSING RESIDUES REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 465 REMARK 465 M RES C SSSEQI REMARK 465 ILE A 127 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 K K A 305 O HOH A 405 1.49 REMARK 500 K K B 305 O HOH B 406 1.49 REMARK 500 K K C 305 O HOH C 406 1.49 REMARK 500 K K B 305 O HOH B 410 1.57 REMARK 500 K K C 305 O HOH C 410 1.58 REMARK 500 K K A 305 O HOH A 410 1.59 REMARK 500 CE2 PHE C 195 O HOH C 412 1.87 REMARK 500 CE2 PHE B 195 O HOH B 412 1.97 REMARK 500 CE2 PHE A 195 O HOH A 412 1.98 REMARK 500 NZ LYS C 233 C14 RET C 309 2.01 REMARK 500 NZ LYS B 233 C14 RET B 309 2.01 REMARK 500 O TYR C 101 O HOH C 401 2.02 REMARK 500 O TYR B 101 O HOH B 401 2.03 REMARK 500 NZ LYS A 233 C14 RET A 309 2.03 REMARK 500 O TYR A 101 O HOH A 401 2.04 REMARK 500 CE LYS C 233 C15 RET C 309 2.06 REMARK 500 CE LYS B 233 C15 RET B 309 2.06 REMARK 500 CE LYS A 233 C15 RET A 309 2.08 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: TORSION ANGLES REMARK 500 REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS: REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2) REMARK 500 REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI- REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400 REMARK 500 REMARK 500 M RES CSSEQI PSI PHI REMARK 500 PHE A 96 75.72 -100.55 REMARK 500 PHE B 96 75.74 -100.51 REMARK 500 PHE C 96 75.50 -100.64 REMARK 500 REMARK 500 REMARK: NULL REMARK 620 REMARK 620 METAL COORDINATION REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K A 307 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASN A 67 OD1 REMARK 620 2 HOH A 406 O 116.2 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K A 308 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASN A 67 O REMARK 620 2 HOH A 404 O 96.8 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K A 303 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 SER A 70 O REMARK 620 2 LYS A 233 O 138.3 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K A 306 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 SER A 97 O REMARK 620 2 HOH A 401 O 126.8 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K A 302 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASN A 99 O REMARK 620 2 HOH A 401 O 95.2 REMARK 620 3 HOH A 402 O 165.8 76.7 REMARK 620 4 HOH A 403 O 97.5 103.6 95.7 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K A 301 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 105 OD2 REMARK 620 2 HOH A 409 O 50.7 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K A 305 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLN A 218 OE1 REMARK 620 2 HOH A 407 O 112.7 REMARK 620 3 HOH A 411 O 121.9 75.2 REMARK 620 N 1 2 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K B 307 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASN B 67 OD1 REMARK 620 2 HOH B 405 O 118.1 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K B 308 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASN B 67 O REMARK 620 2 HOH B 404 O 96.8 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K B 303 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 SER B 70 O REMARK 620 2 LYS B 233 O 138.8 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K B 306 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 SER B 97 O REMARK 620 2 HOH B 401 O 126.9 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K B 302 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASN B 99 O REMARK 620 2 HOH B 401 O 95.6 REMARK 620 3 HOH B 402 O 165.8 76.7 REMARK 620 4 HOH B 403 O 97.7 103.7 95.7 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K B 301 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP B 105 OD2 REMARK 620 2 HOH B 409 O 50.6 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K B 305 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLN B 218 OE1 REMARK 620 2 HOH B 407 O 112.7 REMARK 620 3 HOH B 411 O 121.5 74.8 REMARK 620 N 1 2 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K C 307 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASN C 67 OD1 REMARK 620 2 HOH C 405 O 117.2 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K C 308 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASN C 67 O REMARK 620 2 HOH C 404 O 96.8 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K C 303 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 SER C 70 O REMARK 620 2 LYS C 233 O 138.8 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K C 306 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 SER C 97 O REMARK 620 2 HOH C 401 O 126.4 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K C 302 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASN C 99 O REMARK 620 2 HOH C 401 O 95.5 REMARK 620 3 HOH C 402 O 166.0 76.8 REMARK 620 4 HOH C 403 O 97.6 103.7 95.7 REMARK 620 N 1 2 3 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K C 301 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP C 105 OD2 REMARK 620 2 HOH C 409 O 50.4 REMARK 620 N 1 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K C 305 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLN C 218 OE1 REMARK 620 2 HOH C 407 O 112.8 REMARK 620 3 HOH C 411 O 121.5 75.1 REMARK 620 N 1 2 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: EMD-39883 RELATED DB: EMDB REMARK 900 EXOC110T CLASS 1 CHANNELRHODOPSIN DBREF 8ZAP A 2 260 PDB 8ZAP 8ZAP 2 260 DBREF 8ZAP B 2 260 PDB 8ZAP 8ZAP 2 260 DBREF 8ZAP C 2 260 PDB 8ZAP 8ZAP 2 260 SEQRES 1 A 259 PRO PHE TYR ASP SER ARG PRO PRO GLU GLY TRP PRO LYS SEQRES 2 A 259 GLY SER ILE ASN ASP MET ASP TYR PRO LEU LEU GLY SER SEQRES 3 A 259 ILE CYS ALA VAL CYS CYS VAL PHE VAL ALA GLY SER GLY SEQRES 4 A 259 ILE TRP MET LEU TYR ARG LEU ASP LEU GLY MET GLY TYR SEQRES 5 A 259 SER CYS LYS PRO TYR LYS SER GLY ARG ALA PRO GLU VAL SEQRES 6 A 259 ASN SER LEU SER GLY ILE ILE CYS LEU LEU CYS GLY THR SEQRES 7 A 259 MET TYR ALA ALA LYS SER PHE ASP PHE PHE ASP GLY GLY SEQRES 8 A 259 GLY THR PRO PHE SER LEU ASN TRP TYR TRP TYR LEU ASP SEQRES 9 A 259 TYR VAL PHE THR THR PRO LEU LEU ILE LEU ASP PHE ALA SEQRES 10 A 259 PHE THR LEU ASP LEU PRO HIS LYS ILE ARG TYR PHE PHE SEQRES 11 A 259 ALA VAL PHE LEU THR LEU TRP CYS GLY VAL ALA ALA PHE SEQRES 12 A 259 VAL THR PRO SER ALA TYR ARG PHE ALA TYR TYR ALA LEU SEQRES 13 A 259 GLY CYS CYS TRP PHE THR PRO PHE ALA LEU SER LEU MET SEQRES 14 A 259 ARG HIS VAL LYS GLU ARG TYR LEU VAL TYR PRO PRO LYS SEQRES 15 A 259 CYS GLN ARG TRP LEU PHE TRP ALA CYS VAL ILE PHE PHE SEQRES 16 A 259 GLY PHE TRP PRO MET PHE PRO ILE LEU PHE ILE PHE SER SEQRES 17 A 259 TRP LEU GLY THR GLY HIS ILE SER GLN GLN ALA PHE TYR SEQRES 18 A 259 ILE ILE HIS ALA PHE LEU ASP LEU THR CYS LYS SER ILE SEQRES 19 A 259 PHE GLY ILE LEU MET THR VAL PHE ARG LEU GLU LEU GLU SEQRES 20 A 259 GLU HIS THR GLU VAL GLN GLY LEU PRO LEU ASN GLU SEQRES 1 B 259 PRO PHE TYR ASP SER ARG PRO PRO GLU GLY TRP PRO LYS SEQRES 2 B 259 GLY SER ILE ASN ASP MET ASP TYR PRO LEU LEU GLY SER SEQRES 3 B 259 ILE CYS ALA VAL CYS CYS VAL PHE VAL ALA GLY SER GLY SEQRES 4 B 259 ILE TRP MET LEU TYR ARG LEU ASP LEU GLY MET GLY TYR SEQRES 5 B 259 SER CYS LYS PRO TYR LYS SER GLY ARG ALA PRO GLU VAL SEQRES 6 B 259 ASN SER LEU SER GLY ILE ILE CYS LEU LEU CYS GLY THR SEQRES 7 B 259 MET TYR ALA ALA LYS SER PHE ASP PHE PHE ASP GLY GLY SEQRES 8 B 259 GLY THR PRO PHE SER LEU ASN TRP TYR TRP TYR LEU ASP SEQRES 9 B 259 TYR VAL PHE THR THR PRO LEU LEU ILE LEU ASP PHE ALA SEQRES 10 B 259 PHE THR LEU ASP LEU PRO HIS LYS ILE ARG TYR PHE PHE SEQRES 11 B 259 ALA VAL PHE LEU THR LEU TRP CYS GLY VAL ALA ALA PHE SEQRES 12 B 259 VAL THR PRO SER ALA TYR ARG PHE ALA TYR TYR ALA LEU SEQRES 13 B 259 GLY CYS CYS TRP PHE THR PRO PHE ALA LEU SER LEU MET SEQRES 14 B 259 ARG HIS VAL LYS GLU ARG TYR LEU VAL TYR PRO PRO LYS SEQRES 15 B 259 CYS GLN ARG TRP LEU PHE TRP ALA CYS VAL ILE PHE PHE SEQRES 16 B 259 GLY PHE TRP PRO MET PHE PRO ILE LEU PHE ILE PHE SER SEQRES 17 B 259 TRP LEU GLY THR GLY HIS ILE SER GLN GLN ALA PHE TYR SEQRES 18 B 259 ILE ILE HIS ALA PHE LEU ASP LEU THR CYS LYS SER ILE SEQRES 19 B 259 PHE GLY ILE LEU MET THR VAL PHE ARG LEU GLU LEU GLU SEQRES 20 B 259 GLU HIS THR GLU VAL GLN GLY LEU PRO LEU ASN GLU SEQRES 1 C 259 PRO PHE TYR ASP SER ARG PRO PRO GLU GLY TRP PRO LYS SEQRES 2 C 259 GLY SER ILE ASN ASP MET ASP TYR PRO LEU LEU GLY SER SEQRES 3 C 259 ILE CYS ALA VAL CYS CYS VAL PHE VAL ALA GLY SER GLY SEQRES 4 C 259 ILE TRP MET LEU TYR ARG LEU ASP LEU GLY MET GLY TYR SEQRES 5 C 259 SER CYS LYS PRO TYR LYS SER GLY ARG ALA PRO GLU VAL SEQRES 6 C 259 ASN SER LEU SER GLY ILE ILE CYS LEU LEU CYS GLY THR SEQRES 7 C 259 MET TYR ALA ALA LYS SER PHE ASP PHE PHE ASP GLY GLY SEQRES 8 C 259 GLY THR PRO PHE SER LEU ASN TRP TYR TRP TYR LEU ASP SEQRES 9 C 259 TYR VAL PHE THR THR PRO LEU LEU ILE LEU ASP PHE ALA SEQRES 10 C 259 PHE THR LEU ASP LEU PRO HIS LYS ILE ARG TYR PHE PHE SEQRES 11 C 259 ALA VAL PHE LEU THR LEU TRP CYS GLY VAL ALA ALA PHE SEQRES 12 C 259 VAL THR PRO SER ALA TYR ARG PHE ALA TYR TYR ALA LEU SEQRES 13 C 259 GLY CYS CYS TRP PHE THR PRO PHE ALA LEU SER LEU MET SEQRES 14 C 259 ARG HIS VAL LYS GLU ARG TYR LEU VAL TYR PRO PRO LYS SEQRES 15 C 259 CYS GLN ARG TRP LEU PHE TRP ALA CYS VAL ILE PHE PHE SEQRES 16 C 259 GLY PHE TRP PRO MET PHE PRO ILE LEU PHE ILE PHE SER SEQRES 17 C 259 TRP LEU GLY THR GLY HIS ILE SER GLN GLN ALA PHE TYR SEQRES 18 C 259 ILE ILE HIS ALA PHE LEU ASP LEU THR CYS LYS SER ILE SEQRES 19 C 259 PHE GLY ILE LEU MET THR VAL PHE ARG LEU GLU LEU GLU SEQRES 20 C 259 GLU HIS THR GLU VAL GLN GLY LEU PRO LEU ASN GLU HET K A 301 1 HET K A 302 1 HET K A 303 1 HET K A 304 1 HET K A 305 1 HET K A 306 1 HET K A 307 1 HET K A 308 1 HET RET A 309 20 HET K B 301 1 HET K B 302 1 HET K B 303 1 HET K B 304 1 HET K B 305 1 HET K B 306 1 HET K B 307 1 HET K B 308 1 HET RET B 309 20 HET K C 301 1 HET K C 302 1 HET K C 303 1 HET K C 304 1 HET K C 305 1 HET K C 306 1 HET K C 307 1 HET K C 308 1 HET RET C 309 20 HETNAM K POTASSIUM ION HETNAM RET RETINAL FORMUL 4 K 24(K 1+) FORMUL 12 RET 3(C20 H28 O) FORMUL 31 HOH *36(H2 O) HELIX 1 AA1 ASP A 21 GLY A 50 1 30 HELIX 2 AA2 PRO A 64 ASN A 67 5 4 HELIX 3 AA3 SER A 68 ASP A 90 1 23 HELIX 4 AA4 ASP A 105 ASP A 122 1 18 HELIX 5 AA5 HIS A 125 LYS A 126 5 2 HELIX 6 AA6 ARG A 128 ARG A 128 5 1 HELIX 7 AA7 TYR A 129 THR A 146 1 18 HELIX 8 AA8 ALA A 149 LEU A 178 1 30 HELIX 9 AA9 PRO A 181 TRP A 199 1 19 HELIX 10 AB1 PRO A 200 SER A 209 1 10 HELIX 11 AB2 SER A 217 LYS A 233 1 17 HELIX 12 AB3 LYS A 233 GLU A 252 1 20 HELIX 13 AB4 ASP B 21 GLY B 50 1 30 HELIX 14 AB5 PRO B 64 ASN B 67 5 4 HELIX 15 AB6 SER B 68 ASP B 90 1 23 HELIX 16 AB7 ASP B 105 LEU B 121 1 17 HELIX 17 AB8 HIS B 125 THR B 146 1 22 HELIX 18 AB9 ALA B 149 LEU B 178 1 30 HELIX 19 AC1 PRO B 181 TRP B 199 1 19 HELIX 20 AC2 PRO B 200 SER B 209 1 10 HELIX 21 AC3 SER B 217 LYS B 233 1 17 HELIX 22 AC4 LYS B 233 GLU B 252 1 20 HELIX 23 AC5 ASP C 21 GLY C 50 1 30 HELIX 24 AC6 PRO C 64 ASN C 67 5 4 HELIX 25 AC7 SER C 68 ASP C 90 1 23 HELIX 26 AC8 ASP C 105 LEU C 121 1 17 HELIX 27 AC9 HIS C 125 THR C 146 1 22 HELIX 28 AD1 ALA C 149 LEU C 178 1 30 HELIX 29 AD2 PRO C 181 TRP C 199 1 19 HELIX 30 AD3 PRO C 200 SER C 209 1 10 HELIX 31 AD4 SER C 217 LYS C 233 1 17 HELIX 32 AD5 LYS C 233 GLU C 252 1 20 LINK NZ LYS A 233 C15 RET A 309 1555 1555 1.43 LINK NZ LYS B 233 C15 RET B 309 1555 1555 1.43 LINK NZ LYS C 233 C15 RET C 309 1555 1555 1.43 LINK OD1 ASN A 67 K K A 307 1555 1555 2.92 LINK O ASN A 67 K K A 308 1555 1555 3.06 LINK O SER A 70 K K A 303 1555 1555 3.00 LINK O SER A 97 K K A 306 1555 1555 2.64 LINK O ASN A 99 K K A 302 1555 1555 2.67 LINK OD2 ASP A 105 K K A 301 1555 1555 3.41 LINK OD2 ASP A 116 K K A 304 1555 1555 2.89 LINK OE1 GLN A 218 K K A 305 1555 1555 3.13 LINK O LYS A 233 K K A 303 1555 1555 3.30 LINK K K A 301 O HOH A 409 1555 1555 2.69 LINK K K A 302 O HOH A 401 1555 1555 2.95 LINK K K A 302 O HOH A 402 1555 1555 3.15 LINK K K A 302 O HOH A 403 1555 1555 2.87 LINK K K A 305 O HOH A 407 1555 1555 2.33 LINK K K A 305 O HOH A 411 1555 1555 2.37 LINK K K A 306 O HOH A 401 1555 1555 3.09 LINK K K A 307 O HOH A 406 1555 1555 2.14 LINK K K A 308 O HOH A 404 1555 1555 3.13 LINK OD1 ASN B 67 K K B 307 1555 1555 2.96 LINK O ASN B 67 K K B 308 1555 1555 3.10 LINK O SER B 70 K K B 303 1555 1555 3.00 LINK O SER B 97 K K B 306 1555 1555 2.64 LINK O ASN B 99 K K B 302 1555 1555 2.67 LINK OD2 ASP B 105 K K B 301 1555 1555 3.42 LINK OD2 ASP B 116 K K B 304 1555 1555 2.86 LINK OE1 GLN B 218 K K B 305 1555 1555 3.12 LINK O LYS B 233 K K B 303 1555 1555 3.30 LINK K K B 301 O HOH B 409 1555 1555 2.69 LINK K K B 302 O HOH B 401 1555 1555 2.94 LINK K K B 302 O HOH B 402 1555 1555 3.15 LINK K K B 302 O HOH B 403 1555 1555 2.87 LINK K K B 305 O HOH B 407 1555 1555 2.33 LINK K K B 305 O HOH B 411 1555 1555 2.38 LINK K K B 306 O HOH B 401 1555 1555 3.09 LINK K K B 307 O HOH B 405 1555 1555 2.12 LINK K K B 308 O HOH B 404 1555 1555 3.12 LINK OD1 ASN C 67 K K C 307 1555 1555 2.95 LINK O ASN C 67 K K C 308 1555 1555 3.07 LINK O SER C 70 K K C 303 1555 1555 3.00 LINK O SER C 97 K K C 306 1555 1555 2.64 LINK O ASN C 99 K K C 302 1555 1555 2.67 LINK OD2 ASP C 105 K K C 301 1555 1555 3.41 LINK OD2 ASP C 116 K K C 304 1555 1555 2.81 LINK OE1 GLN C 218 K K C 305 1555 1555 3.12 LINK O LYS C 233 K K C 303 1555 1555 3.30 LINK K K C 301 O HOH C 409 1555 1555 2.69 LINK K K C 302 O HOH C 401 1555 1555 2.94 LINK K K C 302 O HOH C 402 1555 1555 3.15 LINK K K C 302 O HOH C 403 1555 1555 2.87 LINK K K C 305 O HOH C 407 1555 1555 2.33 LINK K K C 305 O HOH C 411 1555 1555 2.37 LINK K K C 306 O HOH C 401 1555 1555 3.10 LINK K K C 307 O HOH C 405 1555 1555 2.13 LINK K K C 308 O HOH C 404 1555 1555 3.14 CRYST1 1.000 1.000 1.000 90.00 90.00 90.00 P 1 1 ORIGX1 1.000000 0.000000 0.000000 0.00000 ORIGX2 0.000000 1.000000 0.000000 0.00000 ORIGX3 0.000000 0.000000 1.000000 0.00000 SCALE1 1.000000 0.000000 0.000000 0.00000 SCALE2 0.000000 1.000000 0.000000 0.00000 SCALE3 0.000000 0.000000 1.000000 0.00000